Multi-wavelength imaging pyrometer for noncontact temperature sensing

Author

Kaplinsky, Michael B. ; Kosonocky, Walter F. ; McCaffrey, Nathaniel J. ; Li, Jun ; Hou, Edwin S H ; Manikopoulos, Constantine N. ; Ravindra, N.M.

Author_Institution

Electronic Imaging Center, New Jersey Inst. of Technol., Newark, NJ, USA

Volume

1

fYear

34881

fDate

10-14 Jul1995

Firstpage

199

Abstract

Multi-wavelength imaging pyrometer (M-WIP) is presented for remote sensing of temperature profiles of targets with unknown emissivity. A software package was developed for calibration and real-time M-WIP measurements. An experimental 7-filter line-sensing M-WIP system was implemented with a 320×122-element PtSi IR-CCD imager. The M-WIP system was calibrated against a commercial blackbody source over a temperature range from 450°C to 900°C. The signal processing included background subtraction and compensation for variation of dark current with detected signal and nonlinearity of IR imager response. Initial M-WIP measurements demonstrated real-time temperature resolution ΔT of ±1°C for blackbody target over temperature range from 600°C to 900°C

Keywords

CCD image sensors; calibration; infrared imaging; pyrometers; remote sensing; spectral methods of temperature measurement; 450 to 900 C; 7-filter line-sensing M-WIP system; IR imager response nonlinearity; PtSi; PtSi IR-CCD imager; background subtraction; blackbody source; blackbody target; calibration; dark current compensation; multi-wavelength imaging pyrometer; noncontact temperature sensing; radiometric model; real-time temperature resolution; remote sensing; signal processing; software package; Calibration; Dark current; Infrared detectors; Remote sensing; Signal processing; Software measurement; Software packages; Temperature distribution; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 1995. ISIE '95., Proceedings of the IEEE International Symposium on

Conference_Location

Athens

Print_ISBN

0-7803-7369-3

Type

conf

DOI

10.1109/ISIE.1995.496626

Filename

496626